CN212683853U - Double-spring tool for dismounting and mounting air drum brake - Google Patents
Double-spring tool for dismounting and mounting air drum brake Download PDFInfo
- Publication number
- CN212683853U CN212683853U CN202021350639.XU CN202021350639U CN212683853U CN 212683853 U CN212683853 U CN 212683853U CN 202021350639 U CN202021350639 U CN 202021350639U CN 212683853 U CN212683853 U CN 212683853U
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- spring
- lever handle
- double
- double spring
- hook
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Abstract
The utility model discloses a put double spring instrument in gas drum brake dismouting. Comprises a hook head and a lever handle; one end of the double spring is hinged and hooked to the middle of the horseshoe on one side of the brake, the other end of the double spring is hooked on the pin sleeve, the middle of the pin sleeve is connected with the hook portion on one end of the hook head, one end of the lever handle is a regular hexagon rod, and the regular hexagon rod of the lever handle penetrates through the technical installation hole of the horseshoe on the other side of the brake and then is inserted into the hexagon through hole on the other end of the hook head. The utility model discloses a structural design that eave tile, lever handle combined together can put the dismouting of spring in the effectual completion, and labour saving and time saving improves work efficiency.
Description
Technical Field
The utility model belongs to the assembly and disassembly tools of spring, concretely relates to not only can be used for the installation but also can be used for dismantling the instrument of putting double spring in gas drum brake.
Background
Most of heavy truck brakes on the market are air drum brakes, and the brakes have larger braking radius and wider shoes due to the requirement of larger braking torque. If the return spring is suspended on one side of the horseshoe, the horseshoe may be stressed on one side, and the verticality of the friction surface of the horseshoe is poor. The return spring is arranged in the middle of the horseshoe, a double-spring structure is adopted, sufficient return force is guaranteed, meanwhile, faults such as brake drag grinding and the like caused by failure of a single spring are effectively prevented, and product performance and service life can be effectively improved.
The distance between the return spring pins of the two brake shoes is longer than the length of the spring, so the spring can be installed and disassembled only by a certain stretching amount, and the spring is arranged between the two shoes, so the structure and the installation mode of the common spring can not meet the requirements. Therefore, a special tool is needed to realize the assembly and disassembly of the spring.
SUMMERY OF THE UTILITY MODEL
In order to realize middle double spring installation and the extracting tool of arranging, the utility model aims to provide a put double spring instrument in gas drum brake dismouting, can put the dismouting of spring in the effectual completion, simple structure, labour saving and time saving improves work efficiency.
In order to achieve the above purpose, the utility model adopts the following scheme:
the utility model comprises a hook head and a lever handle; one end of the double spring is hinged and hooked to the middle of the horseshoe on one side of the brake, the other end of the double spring is hooked on the pin sleeve, the middle of the pin sleeve is connected with the hook portion on one end of the hook head, one end of the lever handle is a regular hexagon rod, and the regular hexagon rod of the lever handle penetrates through the technical installation hole of the horseshoe on the other side of the brake and then is inserted into the hexagon through hole on the other end of the hook head.
One end of the hook head and the hook part is provided with a semicircular hook.
The lever handle is an L-shaped rod, one end of the lever handle is a regular hexagon rod, and the other end of the lever handle is a knurled handle.
The utility model has the advantages that:
the utility model discloses the instrument, the structure is reliable, can easily realize putting the installation and the dismantlement of double spring in, and can bear great lever power, is enough to prize the spring.
The utility model discloses a composite structure is simple easily to be operated, labour saving and time saving. Can effectively complete two functions of dismounting the middle spring.
The utility model discloses a structural design that eave tile, lever handle combined together can put the dismouting of spring in the effectual completion, and labour saving and time saving improves work efficiency.
Drawings
Fig. 1 is a schematic view of an assembly of a double spring in an air drum brake.
Fig. 2 is a schematic diagram of the connection of the double springs in the air drum brake.
Fig. 3 is a schematic structural view of the hook head of the present invention.
Fig. 4 is a schematic structural diagram of the tool of the present invention.
Fig. 5 is a schematic diagram of the tool assembly with the double springs.
In the figure: 1. hook head, 2, lever handle.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments:
as shown in fig. 1, the double spring is disposed between the shoes on both sides of the brake, and the distance between the spring pin holes of the two shoes is greater than the natural length of the double spring, so that the double spring needs to be stretched when the spring is installed.
As shown in fig. 3, the utility model comprises a hook head 1 and a lever handle 2; one end of the hook head 1 is provided with a semicircular hook, and the other end is provided with a regular hexagon through hole. The lever handle 2 is an L-shaped rod, one end of the lever handle is a regular hexagon rod and is used for being connected with the hook head 1, and the other end of the lever handle is a knurled handle and is used for preventing skidding.
As shown in fig. 4, the tool connection of the utility model is realized by inserting the regular hexagon through hole of the hook head 1 into the regular hexagon end of the lever handle 2.
Specifically, one end of a double spring is hinged and hooked to the middle of a horseshoe on one side of the brake, the other end of the double spring is hooked on two sides of a pin sleeve, the middle of the pin sleeve is connected with a hook part on one end of a hook head 1, one end of a lever handle 2 is a regular hexagon rod, and the regular hexagon rod of the lever handle 2 penetrates through a process mounting hole of the horseshoe on the other side of the brake and then is inserted into a hexagon through hole on the other end of the hook head 1.
As shown in fig. 5, one end of the double spring is fixed in the middle of one shoe when the double spring is assembled, as shown in fig. 2, the double spring is fixed on the pin sleeve, and the spring pin passes through the spring pin hole and the pin sleeve on the shoe to be fixed. The other end of the double spring is hooked on a pin sleeve in the middle of the double spring by a hook head 1, a rod at one end of a regular hexagon of a lever handle 2 extends into a technical installation hole in the other horseshoe, and is inserted into a hexagonal through hole of the hook head 1.
And rotating the lever handle 2 clockwise according to the attached drawing 5 to stretch the double springs, aligning the pin bush in the middle with the shoe spring hole, and inserting the spring pin to finish the installation of the middle double springs. The disassembly process is opposite to the installation.
Claims (3)
1. The utility model provides a put double spring instrument in gas drum brake dismouting which characterized in that: comprises a hook head (1) and a lever handle (2); the articulated coupling of double spring one end is in the shoe middle part of stopper one side, and double spring other end articulates on the round pin cover, and the middle part of round pin cover is connected with the hook portion of gib head (1) one end, and lever handle (2) one end is regular hexagon pole, and the hexagonal through-hole of gib head (1) other end is inserted to the regular hexagon pole of lever handle (2) after passing the technology mounting hole of the shoe of stopper opposite side.
2. The tool for mounting and dismounting the middle double spring of the air drum brake as claimed in claim 1, wherein: one end of the hook part of the hook head (1) is provided with a semicircular hook.
3. The tool for mounting and dismounting the middle double spring of the air drum brake as claimed in claim 1, wherein: the lever handle (2) is an L-shaped rod, one end of the L-shaped rod is a regular hexagon rod, and the other end of the L-shaped rod is a knurled handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350639.XU CN212683853U (en) | 2020-07-10 | 2020-07-10 | Double-spring tool for dismounting and mounting air drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350639.XU CN212683853U (en) | 2020-07-10 | 2020-07-10 | Double-spring tool for dismounting and mounting air drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212683853U true CN212683853U (en) | 2021-03-12 |
Family
ID=74896710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021350639.XU Active CN212683853U (en) | 2020-07-10 | 2020-07-10 | Double-spring tool for dismounting and mounting air drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212683853U (en) |
-
2020
- 2020-07-10 CN CN202021350639.XU patent/CN212683853U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |